Smoothing Arduino IR SHARP analog signal

hello, thank you for both, the max5 patcher teaches me a lot and the earlier discussion too.

The IR sensors go straight into the analogue pin. I use a sarcduino0_15nw. Here the code is too advanced for me to understand, but if there is a simpler version, which by chance would turn out to be more reliable, I would go for it:

The arduino is:

//*************************************************************************//
//* Sarcuino
//* Version: Beta 0.14.5
//* Last modified by: Nicholas Ward
//* Date: Mar 2nd, 2009
//*************************************************************************//

/* This is just simple data acquisition code. It sends a packet via serial that look s like this

(byte representing digital inputs 2 to 7)
(byte representing digital inputs 8 to 13)

(byte representing high 4 bits of analog n)
(byte representing low 6 bits of analog n)
// the above two bytes repeat depending on how many analog inputs you have enabled

(255 send to indicate end of packet)

Use [comport] in PD or [serial] in max to open the serial connection

In MAX/MSP use [zl group 50] in combination with [select 255] to put the data stream into lists with one packet per list
then use [unpack i i i i i i i i i i i i i i i i i i i i i ] to get at each individual byte

In PD I use [zexy/repack] instead of [zl group]

*/

#include
#include

#define ANALOG_INPUTS_ENABLED 6 // Choose number of analog inputs to enable
#define SAMPLE_FREQ 4 // Use: 1 -> 1kHz; 2 -> 500Hz; 4 -> 250Hz, etc.
// N.B. The arduino can sample all pins at 500Hz
// This however causes serious burstiness

// FOR REALTIME CONTROL (lower latency and lower burstiness)
// To avoid data being buffered and sent in blocks of 4KB you should insure that
// ((ANALOG_INPUTS_ENABLED * 2) + 3) * ((1/SAMPLE_FREQ)*1000) < 3875
// This is a limitation of the ftdi usb driver
// Further details and possible solutions can be found here
// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1170939903/15

//**************************************************************************//
//** Variables for data polling
//**
int analogPin, digitalPin; // Counters for poll loop
int analogData; // outgoing ADC value
byte x = 0; //byte to store digital status
byte y = 0; //same as above to store remaining digital pins status

//**************************************************************************//
//** Setup
//**
void setup() {
//setup serial baudrate for USB connection
Serial.begin(57600);

//enable digital pullups. All digital pins are set high
//and will only output change when connected to ground
for(digitalPin=2;digitalPin
{
pinMode(digitalPin, INPUT); //Setpin up for input
digitalWrite(digitalPin, HIGH); //enable internal pullups
}
}

//**************************************************************************//
//** Main Loop.
//** Millis is an interrupt friven timer that begins to increment every ms once the
//** arduino starts. If millis modded with sample freq is 0 then the correct sampling
//** period has passed and its time to sample again.
void loop() {

long periodCheck = millis()%SAMPLE_FREQ;

if (periodCheck == 0)
{
SampleAndSend();
}
}

//**************************************************************************//
//** SampleAndSend
//** This function is called by the main loop and does the actual work of
//** reading the input pins and sending the data via serial

void SampleAndSend()
{
x = PIND >> 2; // Shift analog pin port D by 2 to avoid TX and RX pins
Serial.print(x, BYTE);
y = PINB; // Read remaining digital pins
Serial.print(y, BYTE);

for(analogPin=0; analogPin

{
analogData = analogRead(analogPin); // Read current analog pin value
Serial.print(analogData >> 7, BYTE); // shift high bits into output byte
Serial.print(analogData % 128, BYTE); // mod by 128 for the small byte
}

Serial.print(255, BYTE); // end of packet signifier

// This bit of code was used for checking how long a full read takes
//Serial.println(millis());
}

The Max 5 patch is:

thank you
best,
K